---
title: "USN-1663-1: Nova vulnerability | Ubuntu security notices\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/notices/USN-1663-1?format=md
keywords: index, follow
---

1. [Ubuntu Security Notices](https://ubuntu.com/security/notices)
2. USN-1663-1

---

# USN-1663-1: Nova vulnerability

Publication date

12 December 2012

Overview

Nova could be made to expose sensitive information.

Releases

[12.10](https://ubuntu.com/security/notices?release=quantal)

---

Open side navigation

## Packages

* [nova](https://ubuntu.com/security/cves?package=nova) - OpenStack Compute cloud infrastructure

## Details

Eric Windisch discovered that Nova did not properly clear LVM-backed images
before they were reallocated which could potentially lead to an information
leak. This issue only affected setups using libvirt LVM-backed instances.

## Update instructions

In general, a standard system update will make all the necessary changes.

[Learn more about how to get the fixes.](https://ubuntu.com/security/cves/about#security)

The problem can be corrected by updating your system to the following package versions:

| Ubuntu Release | Package Version |
| --- | --- |
| 12.10 quantal | [python-nova](https://launchpad.net/ubuntu/+source/nova) –  [2012.2-0ubuntu5.2](https://launchpad.net/ubuntu/+source/nova/2012.2-0ubuntu5.2) | | |

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## References

* [CVE-2012-5625](https://ubuntu.com/security/CVE-2012-5625)